Chemiresistive gas sensor based on spray pyrolyzed fluorine doped tin oxide films for trimethylamine detection

Authors

  • Laureen Ida M. Ballesteros Materials Science and Engineering Program, University of the Philippines Diliman
  • Christopher Jude T. Vergara Materials Science and Engineering Program, University of the Philippines Diliman
  • Armando S. Somintac National Institute of Physics, University of the Philippines Diliman

Abstract

Gas sensors based on nanocrystalline undoped tin oxide (SnO2) and fluorine-doped tin oxide (SnO2:F) thin films were prepared using an economical nebulized spray pyrolysis technique. The 0.3M precursor tin oxide solutions with varying fluorine doping concentrations (0, 20, and 40mol%) were deposited on glass substrates at 300oC. The X-ray Diffraction (XRD) and scanning electron microscopy (SEM) analyses confirmed the formation of nanocrystalline rutile structured SnO2 and SnO2:F continuous films with particle sizes ranging from 173 nm to 452 nm. The SnO2:F (40mol%) film based sensors exhibited an enhanced room temperature response to trimethylamine compared to its undoped counterpart.

Proceedings SPP 2016 Cover

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Published

2016-08-18

Issue

2016: Proceedings of the 34th Samahang Pisika ng Pilipinas Physics Conference

Section

Poster Session PA

License

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Upon acceptance of their manuscript, the Authors further agree to grant SPP the non-exclusive, worldwide, and royalty-free rights to record, edit, copy, reproduce, publish, distribute, and use all or part of the manuscript for any purpose, in any media now existing or developed in the future, either individually or as part of a collection.
All other associated economic and moral rights as granted by the Intellectual Property Code of the Philippines are maintained by the Authors.

How to Cite

[1]
“Chemiresistive gas sensor based on spray pyrolyzed fluorine doped tin oxide films for trimethylamine detection”, Proc. SPP, vol. 34, no. 1, p. SPP-2016-PA-07, Aug. 2016, Accessed: Mar. 24, 2026. [Online]. Available: https://proceedings.spp-online.org/article/view/SPP-2016-PA-07